(19)
(11) EP 1 812 842 A2

(12)

(88) Date of publication A3:
05.10.2006

(43) Date of publication:
01.08.2007 Bulletin 2007/31

(21) Application number: 05801750.0

(22) Date of filing: 08.11.2005
(51) International Patent Classification (IPC): 
G05F 3/22(2006.01)
(86) International application number:
PCT/IB2005/053670
(87) International publication number:
WO 2006/051486 (18.05.2006 Gazette 2006/20)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 11.11.2004 EP 04105701

(71) Applicant: Koninklijke Philips Electronics N.V.
5621 BA Eindhoven (NL)

(72) Inventors:
  • TRIPODI, Lorenzo
    NL-5656 AA Eindhoven (NL)
  • SANDULEANU, Mihai, A., T.
    NL-5656 AA Eindhoven (NL)
  • BLANKEN, Pieter, G.
    NL-5656 AA Eindhoven (NL)

(74) Representative: Pennings, Johannes 
NXP Semiconductors Intellectual Property Department High Tech Campus 60
5656 AG Eindhoven
5656 AG Eindhoven (NL)

   


(54) ALL NPN-TRANSISTOR PTAT CURRENT SOURCE